Home / 154,278.42-212,949.48-89,762.83

Finding the Fourth Proportional to 154,278.42, 212,949.48 and 89,762.83

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Solution

The fourth proportional to 154,278.42, 212,949.48 and 89,762.83 is: 123,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,278.42 : 212,949.48 = 89,762.83 : x
  2. Step 2: Convert to fraction form
    154,278.42/212,949.48 = 89,762.83/x
  3. Step 3: Cross multiply
    154,278.42x = 212,949.48 × 89,762.83
  4. Step 4: Simplify right side
    154,278.42x = 19,114,947,670.43
  5. Step 5: Solve for x
    x = 19,114,947,670.43/154,278.42
  6. Step 6: Final answer
    x = 123,899.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.